#ifndef __KCUSTOMVECTOR__H
#define __KCUSTOMVECTOR__H

template <class T>
class KCustomVector
{
public:
	KCustomVector(DWORD dwDefaultSize = 40)
	{
		_allocator = new T[dwDefaultSize];
		_first = _allocator;
		_last = _allocator;
		_end = _first + dwDefaultSize;
	}
	~KCustomVector()
	{
		delete [] _allocator;
	}

	void push_back(const T & _obj)
	{
		if( _last == _end)
		{
			int nSize = static_cast<int>((_last - _first) * 2);
			T * _newAllocator = new T[nSize];
			
			for(int i = 0; i < nSize / 2; ++i)
				_newAllocator[i] = _allocator[i];

			delete []_allocator;
			_allocator = _newAllocator;
			_first = _allocator;
			_last = _first + (nSize / 2);
			_end = _first + nSize;
		}
		*_last = _obj;
		_last++;
	}

	T & front() { return _first[0]; }
	T * begin() { return _first; }
	T * end() { return _last; }
	T & at(int nIndex)
	{
		return _allocator[nIndex];
	}
	T & operator[](int nIndex)
	{
		return _allocator[nIndex];
	}
	void clear()
	{
		_last = _first;
	}

	int size()
	{
		return (int)(_last - _first);
	}
	typedef T* iterator;

private:
	T * _first, *_last, *_end;
	T * _allocator;
};

#endif